Categories of Tissues Epithelium Connective Muscle Nervous Epithelium Lines, covers, and protects other tissues and organs. Characterized by: Cells tightly junked together The presence of a cell secretion called the basement membrane. Named by: Cell shape Other characteristics of the cells. Squamous, Cuboidal, and Columnar Cuboidal Epithelium Cells cube shaped- secretion and absorption. Kidney tubules Duct and small glands Surface of ovary Connective Tissue Characterized by the cells widely separated from each other in a matrix that is produced by the cells. Tissue protects and supports. Cell Matrix composed of two regions Ground Liquid (sol), Gel, Gum or solid Fibers Non-elastic (= white or Collagen) Elastic (= yellow fibers) Types of Connective tissue

1. Submitted By: JASVEER RANA

2. Categories of Tissues
Epithelium
Connective
Muscle
Nervous

3. Categories of Tissues
 Lines, covers, and protects other tissues and
organs.
 Characterized by:
◦ Cells tightly junked togetherjunked together
◦ The presence of a cell secretion called the
basement membranebasement membrane.
 Named by:
◦ Cell shapeCell shape
◦ Other characteristics of the cells.
 SquamousSquamous,, CuboidalCuboidal, and ColumnarColumnar

4. Categories of Tissues
 Cells very thin, much wider than they are thick.
◦ Simple Squamous EpitheliumSimple Squamous Epithelium
 Air sacs of respiratory
 Lining of blood vessels, heart and lymphatic tubes
◦ Stratified Squamous EpitheliumStratified Squamous Epithelium
 Skin
 Vagina
 Esophagus
 Mouth

5. Categories of Tissues

6. Categories of Tissues

7. Categories of Tissues
 Cells cube shaped- secretion and
absorption.
◦ Kidney tubules
◦ Duct and small glands
◦ Surface of ovary

8. Categories of Tissues
 Elongated cells, much longer than they are wide.
◦ Simple Columnar EpitheliumSimple Columnar Epithelium
 A single layer of cells that line the digestive tract,
gallbladder and excretory ducts of some glands. Has
microvilli at surface for absorption.
◦ Pseudostratified ciliated columnar epitheliumPseudostratified ciliated columnar epithelium
 Lines the bronchi, trachea, uterine tubes and some of the
uterus. Propels mucus or reproductive cells by ciliary
action.

9. Categories of Tissues

10. Categories of Tissues

11. Categories of Tissues
 Characterized by the cells widely separated from
each other in a matrix that is produced by the cells.
 Tissue protects and supports.
 Cell Matrix composed of two regions
◦ Ground
 Liquid (sol), Gel, Gum or solid
◦ Fibers
 Non-elastic (= white or Collagen)
 Elastic (= yellow fibers)
 Types of Connective tissue

12. Categories of Tissues
 Loose (Areolar) Connective TissueLoose (Areolar) Connective Tissue
 Dense Connective TissueDense Connective Tissue
 AdiposeAdipose
 CartilageCartilage
 BoneBone
 BloodBlood

13. Categories of Tissues
 Gel like ground with both elastic and non-
elastic fibers running though the ground in
many directions.
◦ Wraps and cushions organs
◦ Under the skin

14. Categories of Tissues
 Nuclei and fibers arranged in parallel rows.
◦ Tendons and ligaments
◦ Fibers mostly non-elastic

15. Categories of Tissues
 Function as storage cells for adipose
(lipids)
 Adipose cells contain a large vacuole which
in the live cell contains lipids.
 Cell nucleus and cytoplasm are pushed
out to edge of cell membrane.

16. Categories of Tissues
 Ground of matrix is gum like.
 Cells are found in Lacunae within the matrix.
 Fibers may be elastic or non-elastic, or a
form of non-elastic called reticular(where the
non-elastic fibers of very thin)
◦ Hyaline CartilageHyaline Cartilage-example on the ends of bones
◦ Elastic CartilageElastic Cartilage- example ear cartilage
◦ Non-elastic Cartilage- example nose cartilage.

17. Categories of Tissues

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19. Categories of Tissues
◦ Ground of matrix is Solid (Calcium carbonate).
◦ Has blood supply and nerves running through the
Haversian canal systems.

20. Categories of Tissues
 Liquid matrix = plasma
◦ 90% water
◦ 10%Plasma proteins, electrolytes, hormones, oxygen,
glucose etc.
 Formed elements
◦ ErythrocytesErythrocytes -48billion(female) to 54 billion (male) cell /
ml of blood in humans. Mammals are enucleated
while rest of the vertebrates they have nuclei
◦ LeukocytesLeukocytes -about 7.5 million / ml of blood
◦ PlateletsPlatelets -blood clotting

21. Categories of Tissues

22. Categories of Tissues
 Tissue with cells having fibers specialized
for contraction.
◦ Skeletal MuscleSkeletal Muscle (Striated, voluntary)
 Parallel elongated cells (fibers)
 multinucleated and each cell is the length of the muscle.
 Light meat, Dark meat—Slow twitch, fast twitch muscle
◦ Smooth MuscleSmooth Muscle (Visceral, involuntary)
 Cells are long and tapered.
 Organized into sheets of muscle.
◦ Cardiac MuscleCardiac Muscle
 Intercalated disc
 Myogenic
 branched

23. Categories of Tissues

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25. Categories of Tissues
Jenna Hellack Jan 2001

26. Categories of Tissues
 Cells specialized to polarize and depolarize.
 Cell is a neuron
Jenna Hellack Jan 2001

27. Categories of Tissues
Submitted BY: JASVEER RANA